Arizonosis

Salmonella Arizonae, the cause of Arizonosis, is biochemically different from other Salmonella serotypes. S. Arizonae causes disease in poultry and humans.

Salmonella Arizonae infections are of particular economic significance in turkeys in North America. In some parts of North America Arizonosis is a notifiable disease.

Clinical signs

Clinical disease is indistinguishable from Salmonellosis.
Poultry

  • Reduced egg production and hatchability.
  • Chicks and poults show weakness, anorexia and shivering.
  • Outbreaks in turkeys and chickens can have up to 60% mortality.

Transmission

  • Fecal-oral route.
  • Some transmission through eggs.
  • Infected birds can become long-term intestinal carriers.

S. arizonae is less hardy than most Salmonella. The bacteria can still survive for months in soil, feed and water.

Treatment

Antimicrobial treatment:

  • Reduces fatalities
  • Does not eliminate the carrier state.

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Hen and her chicks